Psalm 127

Unless the Lord builds the house : their labour is but lost that build it.
Unless the Lord keeps the city : the watchmen watch in vain.
It is in vain that you rise up early and go so late to rest, eating the bread of toil : for the Lord bestows honour and on those whom he loves.
Behold, children are a heritage from the Lord : and the fruit of the womb is his gift.
Like arrows in the hand of a warrior : are the sons of a mans youth.
Happy the man who has his quiver full of them : he will not be put to shame when he confronts his enemies at the gate.